I think most people are a little hesitant to just yank the plastic off. No one wants to scratch the finish or snap off a plastic tab. But sometimes you have to just give it a good tug or get creative like you did with the screwdriver!
The good thing about these scooters is that if you have to replace one of the panels or cowls, they aren't too expensive and they come color matched from the factory! How good a color match is yet to be determined, but I did note that you have to specify your color when ordering...